11.0 actual test Algebra 2 radical functions and inverses test

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What is a radical function?

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A radical function is a function that contains a variable within a radical (square root, cube root, etc.). The general form is f(x) = √(g(x)), where g(x) is a polynomial.

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How do you find the inverse of a function?

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To find the inverse of a function, swap the x and y variables and solve for y. The inverse function undoes the action of the original function.

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What is the domain of a radical function?

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The domain of a radical function is the set of all x-values for which the expression under the radical is non-negative.

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What is an extraneous solution?

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An extraneous solution is a solution that emerges from the process of solving an equation but does not satisfy the original equation.

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